The "Fouriest" numbers: numbers that can be expressed as a string of 4's longer than the original number in some base.

A349031

The "Fouriest" numbers: numbers that can be expressed as a string of 4's longer than the original number in some base.

Terms

    a(0) =624a(1) =3124a(2) =6220a(3) =15624a(4) =37324a(5) =78124a(6) =78432a(7) =223948a(8) =390624a(9) =549028a(10) =1343692a(11) =1953124a(12) =3843200a(13) =8062156a(14) =9586980a(15) =9765624a(16) =26902404a(17) =48372940a(18) =48828124a(19) =76695844a(20) =188316832a(21) =244140624a(22) =290237644a(23) =613566756a(24) =1220703124a(25) =1318217828a(26) =1741425868a(27) =4908534052

External references